Michigan Gazetteer > Michigan ZIP Codes > County ZIP Codes > Iosco ZIP Codes

Also see: ZIP Codes in Iosco with Associated Cities & Towns

ZIP Codes in Iosco County with Associated Cities & Towns

Au Sable   48750
East Tawas   48730
Hale   48739
 Long Lake   48743
National City   48748
Oscoda   48750
 Tawas City   48763
Tawas City   48764
Whittemore   48770

ZIP Codes - Key Concepts

  1. ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
  2. The centroid of a ZIP Code may be in one County and the associated city/town in another.
  3. In rural areas, a single ZIP Code may be used for cities and towns in several different Counties.
  4. ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
  5. ZIP Codes are only loosely tied to cities.